Need Late Model RPM Signal Please

lx2sc

Registered User
Hey guys finally got my car up and running and I m hooking my wideband o2 up LM-1 and LMA 3 to my 1994 SC I need to know which is the correct wire for the rpm signal I have tried the # 4 pin orange/white and it gives me constant 1.6 volts next im am going to try wire off the #1 injector anyone have luck with this and help is greatly appreciated hopefully Dave will chip in with the info Im just glad it started the first time with the 60lb injectors thanks Justin
 
With my PLX datalogger, I could never get a good signal off of the tach line which is pin 12 on the DIS. It also runs to the cluster. I would always get a jumpy signal. I ended up using an injector signal from the EEC connection. I think I used #6 since it was easier to tap into but any of them will work. They should pulse at the same rate.
 
Hey Thanks for the reply Ive got it tapped into the number 1 injector well see how it works out Justin
 
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